Biome Generator

What is Biome Generator?

Biome Generator is a free, open-source browser tool that makes low-poly hexagonal terrain tiles in soft pastel colors, which suit tabletop boards, game maps or a desk display. You start from one of eight biomes (meadow, forest, coast, alpine, lake, desert, tundra and village) and a seed. Each seed gives a different mix of terraces, water, paths and small props such as trees, rocks, benches, docks and fences. You click the faint hexes around a tile to grow a board, and a selected tile can switch to its own biome. Neighboring tiles agree on their shared edge, so a path or a stream carries on across the seam.

Sliders set the tile size and how many props, roads and water edges appear. With roads and water turned off, every tile fits every other tile, so a set can be re-laid freely. Printed dovetails join the tiles without glue. You pick 1 to 4 filaments and a printer bed, the app spreads the tiles over plates, and a print check flags open meshes, steep overhangs, parts under 1 mm and anything left floating.

It suits board gamers, tabletop RPG players and owners of a multicolor printer who want a colorful print without modeling. The project is new and run by one person, so there were few example prints or guides as of September 2026.

What you can make

• Single hex biome tiles
• Multi-tile boards in flower, ring or row layouts
• Interlocking tile sets with dovetail joints
• Multicolor terrain tiles for 1 to 4 filaments

How to use Biome Generator

1. Open biomegenerator.com, pick a biome and type or reroll a seed
2. Click the faint hexes to add tiles, or choose a layout such as Flower or Ring
3. Set tile size, props, roads, water and dovetail connectors
4. Choose 1 to 4 filaments and your printer, then run the print check
5. Download the 3MF, STL bundle or single STL and slice it